/**
  * 写入用户信息到SESSION
  *
  * @param $user_info
  * @author yangyifan <*****@*****.**>
  */
 private static function saveUserSession($user_info)
 {
     //引入函数库
     load_func('common');
     $user_info = obj_to_array($user_info);
     $user_info['user_user_data'] = ['id' => $user_info['id'], 'email' => $user_info['email'], 'updated_at' => $user_info['updated_at']];
     $user_info['sign'] = hash_user_sign($user_info['user_user_data']);
     Session::put('user_info', $user_info);
     Session::save();
 }
 function is_user_login()
 {
     return hash_user_sign(Session::get('user_info.user_user_data')) == Session::get('user_info.sign') ? Session::get('user_info.id') : false;
 }